public function EachPromiseTest::testDoesNotCallNextOnIteratorUntilNeededWhenWaiting in Zircon Profile 8

Same name and namespace in other branches

1. 8.0 vendor/guzzlehttp/promises/tests/EachPromiseTest.php \GuzzleHttp\Promise\Tests\EachPromiseTest::testDoesNotCallNextOnIteratorUntilNeededWhenWaiting()

File

vendor/guzzlehttp/promises/tests/EachPromiseTest.php, line 236

Class

EachPromiseTest

@covers GuzzleHttp\Promise\EachPromise

Namespace

GuzzleHttp\Promise\Tests

Code

public function testDoesNotCallNextOnIteratorUntilNeededWhenWaiting() {
  $results = [];
  $values = [
    10,
  ];
  $remaining = 9;
  $iter = function () use (&$values) {
    while ($value = array_pop($values)) {
      (yield $value);
    }
  };
  $each = new EachPromise($iter(), [
    'concurrency' => 1,
    'fulfilled' => function ($r) use (&$results, &$values, &$remaining) {
      $results[] = $r;
      if ($remaining > 0) {
        $values[] = $remaining--;
      }
    },
  ]);
  $each
    ->promise()
    ->wait();
  $this
    ->assertEquals(range(10, 1), $results);
}